Asphalt shingles continue to be the most widely installed roof covering option in north america.
Roof pitch 12 2.
Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.
Image 1 12 to 12 12 roof pitch 7 12 pitch.
If this isn t practical then perform the same measurement on the underside of the roof.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
We included a roof pitch chart below the 7 12 example image and the calculator below that.
A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options.
Roof pitch degree table.
If a roof rises 2 in a length of 12 this is 2 12 roof pitch.
2 12 roof pitch angle 9 46 degrees.